Rivet



UNITED STATES PATENT OFFICE.

GEORGE H. MEADE, OF QUINCY, ASSIGNOR TO MELLEN B RAY, OF NEWTON,MASSACHUSETTS.

RIVET.

SPECIFICATION forming part of Letters Patent No. 328,704, dated October20, 1885.

Application filed October 15, 1884. Serial No. 145,572. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE H. MEADE, of Quincy, in the county of Norfolkand State of Massachusetts, have invented certain new and usefulImprovements in Rivets, of which the following, taken in connection withthe ac companying drawings, is a specification.

My invention relates to the construction of rivets to be used for thepurpose of securing 1 together two or more pieces of leather or similarmaterial; and it consists in acertain novel construction which willreadily be understood by reference to the description of the drawingsand to the claims to be hereinafter given.

Of the drawings, Figure 1 represents a plan of my improved rivet. Fig. 2represents a front elevation of the same. Fig. 3 represents a sideelevation of the same. Fig. 4 represents a plan of the same after it 2chas been set; and Fig. 5 represents a section on line a; w on Fig.4,showing the rivet in elevation as it appears when set.

A is a rivet made of metal and provided with the head a and shank b,which shank b 2 is provided with two flattened surfaces, 0 c, oppositeto each other, which meet at the end of said shank b to form a suitablecuttingedge, (1, and thereby cause said shank to be wedge-shaped, asshown in Figs. 1, 2, and 3.

0 The shank b, at the point where it joins the head a, may be eitherround, square, oval, or any other desired shape in cross-section, butits cutting-edge d should be lengthwise of its greatest diameter. Thecutting-edge d should 5 be sufficiently sharp to readily enter thematerial in which the rivet is to be set, and it is provided near thecenter of its length with a notch, 6.

On setting the rivet in the material B the 0 cuttingedge 01 cuts a paththrough which the shank bis forced a sufficient distance until the headof the rivet comes into contact with said material. \Vhile being thusforced through the material the cutting-edge comes 5 into contact at thenotch 6 with a knife upon the anvil of the machine for setting therivets, and by it is split or divided, as shown in dotted lines in Fig.2, and one portion thereof is forced by said anvil in one direction,while the other is forced in the opposite direction. The anvil thataccomplishes this object is necessarily of a novel construction, butneeds no further explanation here, as it forms the subject-matter ofanother application of even date herewith.

This rivet may be made very strong, while, on account of its simplicity,it may be made quite cheaply.

I am well aware that nails and pegs have been made and are in common usewhich have shanks which are more or less tapering, but which would bewholly impracticable foruse as rivets in leather work, inasmuch as theyhave no cutting-edge by which a path may be cut through the material forthe ready entrance of the shank b, and also as they are provided with nosuitable shouldered heads between which and the upset ends the materialmay be clamped to prevent the heads from working their way through thematerial, as is the case with said nails and pegs; therefore I make noclaim upon a rivet having a flat-sidedtapered shank; but

What I do claim as new, and desire to secure by Letters Patent of theUnited States, 7 1s- 1. A rivet provided with a head the under shoulderof which is at right angles,or nearly so, to the shank, and having ashank circular in cross'section at its junction with the head, and itstwo opposite sides composed of two converging flat surfaces which meetand form a cutting-edge at the end thereof, substantially as described.

2. A rivet the shank of which is provided at one end with a head theunder side of which forms a shoulder at right angles, or nearly so, tothe said shank, and at the other end with a knife or cutting-edgeextending from opposite sides of said shank toward its center, andhaving midway of said cutting-edge a slight notch, all substantially asand for the purposes described.

In testimony whereof I have signed my name to this specification, in thepresence of 5 two subscribing witnesses, on this 13th day of October, A.D. 1884.

GEORGE H. MEADE.

Witnesses:

N. G. LOMBARD, WALTER E. LOMBARD.

